//
//	vcclr.h - helper code for using the managed extensions to C++
//
//		Copyright (C) Microsoft Corporation
//		All rights reserved.
//

#if _MSC_VER > 1000
#pragma once
#endif

#if !defined(_INC_VCCLR)
#define _INC_VCCLR

#include <gcroot.h>

#pragma warning(push)
#pragma warning(disable:4400)

#ifdef __cplusplus_cli
typedef cli::interior_ptr<const System::Char> __const_Char_ptr;
typedef cli::interior_ptr<const System::Byte> __const_Byte_ptr;
typedef cli::interior_ptr<System::Byte> _Byte_ptr;
typedef const System::String^ __const_String_handle;
#define _NULLPTR nullptr
#else
typedef const System::Char* __const_Char_ptr;
typedef const System::Byte* __const_Byte_ptr;
typedef System::Byte* _Byte_ptr;
typedef const System::String* __const_String_handle;
#define _NULLPTR 0
#endif


//
// get an interior gc pointer to the first character contained in a System::String object
//
inline
__const_Char_ptr
#ifdef __cplusplus_cli
__clrcall
#endif
PtrToStringChars(
	__const_String_handle s
	)
{
	_Byte_ptr bp = const_cast<_Byte_ptr>(reinterpret_cast<__const_Byte_ptr>(s));
	if( bp != _NULLPTR ) {
		unsigned offset = System::Runtime::CompilerServices::RuntimeHelpers::OffsetToStringData;
    	bp += offset;
	}
    return reinterpret_cast<__const_Char_ptr>(bp);
}

#pragma warning(pop)

#undef _NULLPTR

#endif //_INC_VCCLR
